Demountable rim.



J. STEHR.

DEMOUNTABLE RIM. APPLICATION FILED DEC. II, I9I4.

l 144,260. Patented J une 22, 1915.

Atario.

To all whom it may concern:

Be it known .that I, JOSEPH Sri-IHR, residing at Cincinnati. in the county of Hamilton and State of Ghio, have invented certain nev useful mprovements in Dernountable Rims; and Ido hereby declare the following tol be a full, clear, and exact description ofthe invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention `relates to demountable rims for vehicle wheels, and more particularly to a rim for mounting upon an automobile Wheel, by means of Which thepneu- `matic tire upon the Wheel may be easily and quickly removed in case of puncture, blowout `or the like and speedily replaced by a perfectltire. e I

Another 'object of this invention is to rovide a demountable rim as specified vv lich does not embody bolts and which is held attached to the felly of the Wheel by slidable tongues which are operated by peculiarly shaped fingers for hand levers for releasing the demountable rim for disconnection with the Wheel'.

With the foregoing and other objects in vievv this invention consists in such novel' features of construction, combination and arrangement of parts as will be hereinafter more fully described, illustrated in the accompanying drawings andclaimed.

In describing the invention in detail reference will be had to the accompanying drawings wherein like characters designate like or corresponding parts throughout the several views, and in which:

Figure 1 is a cross sectional view through a fragment of a wheel showing the improved demountable rim and the mechanism for permitting of the demounting of the rim in elevation. Fig. 2 is a side elevation of the improved mechanism for holding the demountable rim upon an ordinary Wheel felly, and Fig. 3 is an end view of Fig. 2.

Referring more particularly to the .drawings, 1 designates the felly of an ordinary vehicle Wheel 2. The felly 1 has the upper outer corner thereofcut away as is shown at 3, having its sides inclined. The felly 1 has a rim l mounted thereupon, which rim has its marginal edges upturned as at so as to holdl an ordinary type of pneumatic or cushioning tire 6 thereupon. An auxiliary band 7r is positioned Within one side 'of the corner of the specification of Letters raient. Patenmd gun@ 22 1915. Application filed December 17, 1914.

Serial No. 877,719.

of the rim e and engages the edge of the tire 6 for securelyholding the tire mounted Within the rim l. The rim l has a projection 8 formed thereupon, which extends completely about the inner circumference of the rim and is substantially4 triangular shaped in cross section. The projection 8 is provided for seating in the space formed by the cutting away felly 1 as is shown at 8. The inner side `of the ange 8 is inclined for firm abutting engagement against the inclined outer surface or wall of the cut avvay portion 3, as is clearly shown in Fig. 1 of the drawing.

The felly l has secured thereto at spaced intervals about its length brackets l0 which are substantially U-shaped and have transversely extending Iianges 11 and 12 formed at the terminus of the leg thereof. The flanges 11 and 12 are provided with openings 13, through which bolts 14 extend. The bolts 14 extend laterally through the felly 1 and hold the bracket 10 securely connected to the outer surface or side of the felly, as is clearly shown in Fig. l of the drawings. carried thereb'y,which bolts pivot-ally support levers 15. The levers 15 are pivoted intermediate of their ends, and the. ends 16 thereof extend inwardly toward the felly l and are seated in notches 17 which are formed in sliding tongues 18. The sliding tongues 1S`are carried by the brackets l0 and positioned between the facing sides of the legs thereof and further engage the outer surface of the felly 1 and the outer surface of the depending flange 8 which is formed upon the rim el, for securely holding the flange in the cut out portion The levers -15 have linger gripping handlcs 19 formed thereupon, and inwardly extending lugs 20 formed at the conjunction between the lever body proper and the handle portion 19, which engage the bracket 10 and prevent accidental pivotal movement of the lever.

Flat springs Q1 are secured to the inner surface of the apex of the brackets 10 and extend downwardly and engage the outer surface of the tongues 18, for securely holding these tongues in engagement with the outer side of the felly and the flange 8 and prevent independent sliding movement of the tongue, except upon movement of the lever 15.

rl`he brackets 10 havebolts 14 In the operation of the improved y de- I'nountable run; When it is desired to detach "r demount a rim from a vehicle Wheel for the purpose yof replacing the tire carried thereby, the? levers 15 are moved upon their pivotal points or pins 14 to the position in- 'the method of operation of the improved demountable rim will be readily apparent to those skilled in the art to which this invention appertains and, while in the foregoing description, the principle of the operation of this invention has been described together with various features of construction, it is to be understood thatcertain minor features of construction, combination and arrangement of parts may be altered to Suit practical conditions provided such alterations are comprehended within the sco e'of what is claimed.

1 hat is claimed is 1. In a demountable wheel rim structure,

.the combination with a vehicle Wheel having a felly, said felly having its upper| outer corner cut away, of a tire carrying rim, a fiange formed integrally with the inner surface of said rim and depending therefrom, said flange provided for seating against the cut away corner of said felly, a plurality of U-shaped brackets detachably carried by said felly, levers pivotally carried by said brackets, said levers connected tosaid tongues for movmg said tongues into or out of engagement with said iiange for holding said rim upon said felly for permitting of removal therefrom, and fiat springs carried by said brackets and engaging said tongues for holding said tongues in engagement with the side of said felly and said iiange.

2. In a demountable wheel rim structure, the combination with a vehicle wheel having a felly, said felly having its upper outer corner cut away, of a tire carrying rim, a flange formed integrally with the inner surface of said rim and depending therefrom, said flange provided for seating against the cut away corner of said felly, a plurality of U-shaped brackets detachably carried by said felly, levers pivotally carried by said brackets, said levers connected to said tongues for moving said tongues into or out of engagement with said flange for holding said rim'upon said felly for permitting of removal therefrom, and flat springs carried by said brackets and engaging said tongues forv holding said tongues in en agement with the sides of said felly and said flange, said levers each having an arcuate finger engaging handle formed integrally therewith, a lug formed upon said lever at the conjunction of said handle and the lever body for engagement with said brackets for holding said levers against accidental pivotal movement.

In testimony whereof I aiix my signature in presence of two Witnesses.

JOSEPH STEHR. Witnesses HENRY Gr. HAND, Jr., Bnssin VILLIAMS. 

